# Half-Earth Elemental Phase Spider, CR 17

**Huge Magical Beast (Elemental, Psionic Optional)**

**Hit Dice:** 15d10+75 (157 hp)  
**Initiative:** +5 (+1 Dex, +4 Improved Initiative)  
**Speed:** 40 ft., climb 40 ft.  
**Armor Class:** 24 (-2 size, +1 Dex, +15 natural), touch 9, flat-footed 23  
**Base Attack/Grapple:** +15/+34  
**Attack:** Bite +22 melee (2d8+10 plus poison)  
**Full Attack:** Bite +22 melee (2d8+10 plus poison) and 4 claws +17 melee (1d6+5)  
**Space/Reach:** 15 ft./15 ft.

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### Special Attacks
- **Poison (injury):** Fort DC 24, 1d6 Dex + 1d6 Con per round for 3 rounds  
- **Pounce:** Full attack after charge  
- **Phasing:** Can move partially out of phase to avoid attacks  
- **Multiattack:** Bite + 4 claws  
- **Earth Meld (Half-Earth):** Can merge partially into stone terrain, gaining +2 AC while melded

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### Special Qualities
- Darkvision 60 ft., low-light vision  
- Evasion  
- Climb 40 ft.  
- Earth subtype traits (Half-Earth): DR 5/—, immunity to earth-based attacks, burrow partially through earth  
- Psionics optional (no CR change)

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### Saves
- Fort +17  
- Ref +11  
- Will +8

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### Abilities
- STR 26 (+8)  
- DEX 12 (+1)  
- CON 20 (+5)  
- INT 2 (-4)  
- WIS 14 (+2)  
- CHA 6 (-2)

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### Skills
- Climb +31  
- Hide +18  
- Spot +15  
- Listen +15  
- Move Silently +18

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### Feats
- Multiattack  
- Weapon Focus (Bite)  
- Improved Initiative  
- Power Attack  
- Great Fortitude  
- Improved Critical (Bite)

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**Environment:** Mountains / rocky terrain  
**Organization:** Solitary or small nest (2–4)  
**Challenge Rating:** 17  
**Treasure:** Standard  
**Alignment:** Always neutral